ParameterExists

Determines whether a parameter exists. ColdFusion does not evaluate the argument.

ColdFusion MX: Deprecated this function. It might not work, and might cause an error, in later releases.

Comments are no longer accepted for ColdFusion MX 6.1. ColdFusion 8 is the current version.

Comments

Evik.James said on Jun 11, 2004 at 2:11 PM :

But I really, really, really used to use this function. Please bring it back at your earliest convenience.

Adam Cameron said on Sep 28, 2004 at 5:29 PM :

I don't know that there's anything parameterExists() does that isDefined() doesn't?
http://livedocs.macromedia.com/coldfusion/6.1/htmldocs/funct130.htm#wp1106482

And, FYI: "deprecated" = "is still there, just that it'll be taken out eventually, you have been warned". It doesn't mean it's not still available to you now.

JFBell said on Jun 28, 2006 at 6:42 AM :

RE: http://livedocs.macromedia.com/coldfusion/6.1/htmldocs/functa50.htm#wp1110303

Seems isDefined() does not recognize a file path as valid (ie. d:/documents/upload) while parameterExists() does. So for validation of files uploaded through a from, one must still use parameterExists()...


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